Change in the epidermal and dermal thickness as a result of photodynamic therapy using chlorin E6

Pharmateca ◽  
2021 ◽  
Vol 14_2021 ◽  
pp. 70-73
Author(s):  
S.I. Surkichin Surkichin ◽  
L.S. Kholupova Kholupova ◽  
Keyword(s):  
Photodynamic Therapy ◽  
Chlorin E6 ◽  
Dermal Thickness

Ultrasound Enhances the Efficacy of Chlorin e6-Mediated Photodynamic Therapy in MDA-MB-231 Cells

2013 ◽  
Vol 39 (9) ◽  
pp. 1713-1724 ◽  
Author(s):  
Haiping Wang ◽  
Xiaobing Wang ◽  
Pan Wang ◽  
Kun Zhang ◽  
Shuang Yang ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Chlorin E6

Folic Acid Functionalized Chlorin e6-Superparamagnetic Iron Oxide Nanocarriers as a Theranostic Agent for MRI-Guided Photodynamic Therapy

2021 ◽  
Vol 17 (2) ◽  
pp. 205-215
Author(s):  
Zhenbo Sun ◽  
Mingfang Luo ◽  
Jia Li ◽  
Ailing Wang ◽  
Xucheng Sun ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Folic Acid ◽  
Iron Oxide ◽  
Near Infrared ◽  
Biological Fluids ◽  
Superparamagnetic Iron Oxide ◽  
Chlorin E6 ◽  
Theranostic Agent

Imaging-guided cancer theranostic is a promising strategy for cancer diagnostic and therapeutic. Photodynamic therapy (PDT), as an approved treatment modality, is limited by the poor solubility and dispersion of photosensitizers (PS) in biological fluids. Herein, it is demonstrated that superparamagnetic iron oxide (SPIO)-based nanoparticles (SCFs), prepared by conjugated with Chlorin e6 (Ce6) and modified with folic acid (FA) on the surface, can be used as versatile drug delivery vehicles for effective PDT. The nanoparticles are great carriers for photosensitizer Ce6 with an extremely high loading efficiency. In vitro fluorescence imaging and in vivo magnetic resonance imaging (MRI) results indicated that SCFs selectively accumulated in tumor cells. Under near-infrared laser irradiation, SCFs were confirmed to be capable of inducing low cell viability of RM-1 cells In vitro and displaying efficient tumor ablation with negligible side effects in tumor-bearing mice models.

scholarly journals Impact of Quantum Dot Surface on Complex Formation with Chlorin e6 and Photodynamic Therapy

Nanomaterials ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 9 ◽  
Author(s):  
Artiom Skripka ◽  
Dominyka Dapkute ◽  
Jurga Valanciunaite ◽  
Vitalijus Karabanovas ◽  
Ricardas Rotomskis
Keyword(s):  
Photodynamic Therapy ◽  
Cancer Therapy ◽  
Complex Formation ◽  
Chemical Properties ◽  
Disease Diagnosis ◽  
Chlorin E6 ◽  
Deep Tissue ◽  
Physico Chemical

Nanomaterials have permeated various fields of scientific research, including that of biomedicine, as alternatives for disease diagnosis and therapy. Among different structures, quantum dots (QDs) have distinctive physico-chemical properties sought after in cancer research and eradication. Within the context of cancer therapy, QDs serve the role of transporters and energy donors to photodynamic therapy (PDT) drugs, extending the applicability and efficiency of classic PDT. In contrast to conventional PDT agents, QDs’ surface can be designed to promote cellular targeting and internalization, while their spectral properties enable better light harvesting and deep-tissue use. Here, we investigate the possibility of complex formation between different amphiphilic coating bearing QDs and photosensitizer chlorin e6 (Ce6). We show that complex formation dynamics are dependent on the type of coating—phospholipids or amphiphilic polymers—as well as on the surface charge of QDs. Förster’s resonant energy transfer occurred in every complex studied, confirming the possibility of indirect Ce6 excitation. Nonetheless, in vitro PDT activity was restricted only to negative charge bearing QD-Ce6 complexes, correlating with better accumulation in cancer cells. Overall, these findings help to better design such and similar complexes, as gained insights can be straightforwardly translated to other types of nanostructures—expanding the palette of possible therapeutic agents for cancer therapy.

scholarly journals Photosensitizer Chlorin e6 Internalization into Tumor Cells in Phospholipid Nanoparticles Conjugated with Peptide Containing the NGR Sequence

2018 ◽  
Vol 1 (4) ◽  
pp. e00063 ◽  
Author(s):  
V.N. Prozorovskiy ◽  
L.V. Kostryukova ◽  
E.I. Korotkevich ◽  
T.I. Torkhovskaya ◽  
G.E. Morozevich ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Amino Acid ◽  
Tumor Cells ◽  
Targeted Delivery ◽  
Aminopeptidase N ◽  
Chlorin E6 ◽  
Phospholipid Nanoparticles ◽  
Chlorine E6 ◽  
Targeting Peptide ◽  
Mcf 7

The possibility of increased internalization of the photosensitizer chlorin e6 in tumor cells was investigatedusing soy phosphatidylcholine nanoparticles 20-30 nm with or without attached peptide containing Asn-Gly-Arg (NGR) motif was studied. This amino acid sequence exhibits affinity to aminopeptidase N (CD13), wich is overexpressed in a number of tumor cells and vessels. Nanoparticles with chlorin e6 were prepared with added of distearoylphosphatidylcholine (DSPE) conjugated through PEG with a hexapeptide containing the NGR sequence, and then were incubated with tumor cells НерG2 and MCF-7. Chlorin e6 accumulation in СD13-negative cells (MCF-7) did not depend on the presence of peptide NGR in nanoparticles. However, for НерG2 cells a twofold increase of chlorine e6 internalization was observed as compared with the same particles without NGR. Differences in the response of these two cell lines, differed in expression of aminopeptidase N (APN), suggest the possibility of this protein using for targeted delivery. The prospectivity of usage of phospholipids nanoparticles conjugated with targeting peptide for photodynamic therapy is discussed, taking into account possible variation of APN expression, inherent for many solid tumors.

Development of chlorin e6-conjugated poly(ethylene glycol)-poly(d,l-lactide) nanoparticles for photodynamic therapy

Nanomedicine ◽  
2019 ◽  
Vol 14 (7) ◽  
pp. 819-834 ◽  
Author(s):  
Preeti Kumari ◽  
Sri Vishnu Kiran Rompicharla ◽  
Himanshu Bhatt ◽  
Balaram Ghosh ◽  
Swati Biswas
Keyword(s):  
Photodynamic Therapy ◽  
Ethylene Glycol ◽  
Chlorin E6 ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

scholarly journals Perfluoropolyether Nanoemulsion Encapsulating Chlorin e6 for Sonodynamic and Photodynamic Therapy of Hypoxic Tumor

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 2058
Author(s):  
Liang Hong ◽  
Artem M. Pliss ◽  
Ye Zhan ◽  
Wenhan Zheng ◽  
Jun Xia ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Single Cells ◽  
Oxygen Carrier ◽  
Chlorin E6 ◽  
Tumor Treatment ◽  
Selective Treatment ◽  
Deep Tissue ◽  
Sonodynamic Therapy ◽  
Tumor Environment ◽  
Hypoxic Tumor

Sonodynamic therapy (SDT) has emerged as an important modality for cancer treatment. SDT utilizes ultrasound excitation, which overcomes the limitations of light penetration in deep tumors, as encountered by photodynamic therapy (PDT) which uses optical excitations. A comparative study of these modalities using the same sensitizer drug can provide an assessment of their effects. However, the efficiency of SDT and PDT is low in a hypoxic tumor environment, which limits their applications. In this study, we report a hierarchical nanoformulation which contains a Food and Drug Administration (FDA) approved sensitizer chlorin, e6, and a uniquely stable high loading capacity oxygen carrier, perfluoropolyether. This oxygen carrier possesses no measurable cytotoxicity. It delivers oxygen to overcome hypoxia, and at the same time, boosts the efficiency of both SDT and PDT. Moreover, we comparatively analyzed the efficiency of SDT and PDT for tumor treatment throughout the depth of the tissue. Our study demonstrates that the strengths of PDT and SDT could be combined into a single multifunctional nanoplatform, which works well in the hypoxia environment and overcomes the limitations of each modality. The combination of deep tissue penetration by ultrasound and high spatial activation by light for selective treatment of single cells will significantly enhance the scope for therapeutic applications.

Sign in / Sign up

Export Citation Format

Share Document